Load out suggestions also respond to how many spells and of what level she has available.
If you only have up to 6th level spells available, suggestions may be different then if you have a full 4 block available.
Also, the playstyle will also determine your selection. You said "earth scholar" and not "healer specifically" which brings up the fact that earth scholars are not "just" healers. They have a variety of debuff attack options via binding, curses, commands, and death spells that can be used as front line support or even all out attack magic. Or you can focus solely on healing an protective and be a full "support backline healer" type. Or mix.
Loadout will vary from player to player based off of taste and playstyle.
I, for example, mix healing and protective spells with a smattering of curses, binding, and a few spells to specifically destroy undead.
Fan favorite lower level spells are disarm, repel, bind, and the ever popular magic armor. Bind and pins also are quite useful. As you get higher Cure Serious is a workhorse until you have access to much higher level healing.
I wish her luck and will also point out the following. You get to choose new spells every single day. So another great way for her to find out is to actually ask this question casters who are doing things she also wants to do.
Good luck!